Mercifully, the GPS ‘millennium bug’ was a massive letdown

Mercifully, the GPS ‘millennium bug’ was a massive letdown
ôîòî ïîêàçàíî ñ : thenextweb.com

2019-4-8 15:32

A little-known bug on GPS receivers saw many devices set the clock back to 1999 this weekend. This event, which takes place every 19. 7 years, has the potential to disrupt any system that relies upon GPS satellites for precise timing information.

TNW explained the bug in more detail a few weeks ago, but here’s a recap: GPS satellites transmit data and time information to terrestrial-based devices. Because the data packets are so small, the satellites are unable to encode this information in a standard DD/MM/YY format. Instead, they transmit a 10-bit number which counts upwards from an epoch. This represents…

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China’s two new satellites are a step towards completion of its Space Silk Road

China has successfully launched another two satellites that will be part of its native BeiDou Navigation Satellite System (BDS) – the country’s competitor to the American GPS system. The satellites will bolster China’s ambitious Space Silk Road project – the country’s programme to boost its global revenue from positioning and navigation systems.

2018-10-15 19:03